<div dir="auto"><div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Adriaan van Os <<a href="mailto:fpc@microbizz.nl">fpc@microbizz.nl</a>> schrieb am So., 22. Dez. 2019, 20:53:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I have always wondered why hierarchies in object-oriented programming are idolized, where in the <br>
database world hierarchical databases are something of the past and everything is relational there <br>
now <<a href="https://en.wikipedia.org/wiki/Relational_database" rel="noreferrer noreferrer" target="_blank">https://en.wikipedia.org/wiki/Relational_database</a>>.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">Because in object oriented programming languages one tends to try to work with the common denominator to ease up the dependencies between the concrete implementations. E.g. the LCL relies on TComponent and TControl, it does not need to know that there is a TMyWhateverControl. I even miss inheritance in databases as well as that would make the tables simpler. </div><div dir="auto"><br></div><div dir="auto">Regards, </div><div dir="auto">Sven </div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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